diff options
Diffstat (limited to 'binutils-2.25/bfd/pe-mips.c')
| -rw-r--r-- | binutils-2.25/bfd/pe-mips.c | 923 |
1 files changed, 923 insertions, 0 deletions
diff --git a/binutils-2.25/bfd/pe-mips.c b/binutils-2.25/bfd/pe-mips.c new file mode 100644 index 00000000..2025e7df --- /dev/null +++ b/binutils-2.25/bfd/pe-mips.c @@ -0,0 +1,923 @@ +/* BFD back-end for MIPS PE COFF files. + Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, + 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008, 2009, 2010, 2011 + Free Software Foundation, Inc. + Modified from coff-i386.c by DJ Delorie, dj@cygnus.com + + This file is part of BFD, the Binary File Descriptor library. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, + MA 02110-1301, USA. */ + +#define COFF_WITH_PE +/* pei-mips.c may have defined this to default off (0) before + including this file, so don't redefine if that's the case. + Otherwise we're generating objects, not executable images, + so we want to define it to default on. */ +#ifndef COFF_LONG_SECTION_NAMES +#define COFF_LONG_SECTION_NAMES +#endif /* COFF_LONG_SECTION_NAMES */ +#define PCRELOFFSET TRUE + +#include "sysdep.h" +#include "bfd.h" +#include "libbfd.h" +#include "coff/mipspe.h" +#include "coff/internal.h" +#include "coff/pe.h" +#include "libcoff.h" + +#define COFF_DEFAULT_SECTION_ALIGNMENT_POWER 2 +/* The page size is a guess based on ELF. */ + +#define COFF_PAGE_SIZE 0x1000 + +/* For some reason when using mips COFF the value stored in the .text + section for a reference to a common symbol is the value itself plus + any desired offset. Ian Taylor, Cygnus Support. */ + +/* If we are producing relocatable output, we need to do some + adjustments to the object file that are not done by the + bfd_perform_relocation function. This function is called by every + reloc type to make any required adjustments. */ + +static bfd_reloc_status_type +coff_mips_reloc (bfd *abfd, + arelent *reloc_entry, + asymbol *symbol, + void * data, + asection *input_section ATTRIBUTE_UNUSED, + bfd *output_bfd, + char **error_message ATTRIBUTE_UNUSED) +{ + symvalue diff; + + if (output_bfd == NULL) + return bfd_reloc_continue; + + if (bfd_is_com_section (symbol->section)) + { +#ifndef COFF_WITH_PE + /* We are relocating a common symbol. The current value in the + object file is ORIG + OFFSET, where ORIG is the value of the + common symbol as seen by the object file when it was compiled + (this may be zero if the symbol was undefined) and OFFSET is + the offset into the common symbol (normally zero, but may be + non-zero when referring to a field in a common structure). + ORIG is the negative of reloc_entry->addend, which is set by + the CALC_ADDEND macro below. We want to replace the value in + the object file with NEW + OFFSET, where NEW is the value of + the common symbol which we are going to put in the final + object file. NEW is symbol->value. */ + diff = symbol->value + reloc_entry->addend; +#else + /* In PE mode, we do not offset the common symbol. */ + diff = reloc_entry->addend; +#endif + } + else + /* For some reason bfd_perform_relocation always effectively + ignores the addend for a COFF target when producing + relocatable output. This seems to be always wrong for 386 + COFF, so we handle the addend here instead. */ + diff = reloc_entry->addend; + +#define DOIT(x) \ + x = ((x & ~howto->dst_mask) | (((x & howto->src_mask) + (diff >> howto->rightshift)) & howto->dst_mask)) + + if (diff != 0) + { + reloc_howto_type *howto = reloc_entry->howto; + unsigned char *addr = (unsigned char *) data + reloc_entry->address; + + switch (howto->size) + { + case 0: + { + char x = bfd_get_8 (abfd, addr); + + DOIT (x); + bfd_put_8 (abfd, x, addr); + } + break; + + case 1: + { + short x = bfd_get_16 (abfd, addr); + + DOIT (x); + bfd_put_16 (abfd, (bfd_vma) x, addr); + } + break; + + case 2: + { + long x = bfd_get_32 (abfd, addr); + + DOIT (x); + bfd_put_32 (abfd, (bfd_vma) x, addr); + } + break; + + default: + abort (); + } + } + + /* Now let bfd_perform_relocation finish everything up. */ + return bfd_reloc_continue; +} + +#ifdef COFF_WITH_PE +/* Return TRUE if this relocation should + appear in the output .reloc section. */ + +static bfd_boolean +in_reloc_p (bfd * abfd ATTRIBUTE_UNUSED, reloc_howto_type *howto) +{ + return ! howto->pc_relative && howto->type != MIPS_R_RVA; +} +#endif + +#ifndef PCRELOFFSET +#define PCRELOFFSET FALSE +#endif + +static reloc_howto_type howto_table[] = +{ + /* Reloc type 0 is ignored. The reloc reading code ensures that + this is a reference to the .abs section, which will cause + bfd_perform_relocation to do nothing. */ + HOWTO (MIPS_R_ABSOLUTE, /* Type. */ + 0, /* Rightshift. */ + 0, /* Size (0 = byte, 1 = short, 2 = long). */ + 8, /* Bitsize. */ + FALSE, /* PC_relative. */ + 0, /* Bitpos. */ + complain_overflow_dont, /* Complain_on_overflow. */ + 0, /* Special_function. */ + "IGNORE", /* Name. */ + FALSE, /* Partial_inplace. */ + 0, /* Src_mask. */ + 0, /* Dst_mask. */ + FALSE), /* Pcrel_offset. */ + + /* A 16 bit reference to a symbol, normally from a data section. */ + HOWTO (MIPS_R_REFHALF, /* Type. */ + 0, /* Rightshift. */ + 1, /* Size (0 = byte, 1 = short, 2 = long). */ + 16, /* Bitsize. */ + FALSE, /* PC_relative. */ + 0, /* Bitpos. */ + complain_overflow_bitfield, /* Complain_on_overflow. */ + coff_mips_reloc, /* Special_function. */ + "REFHALF", /* Name. */ + TRUE, /* Partial_inplace. */ + 0xffff, /* Src_mask. */ + 0xffff, /* Dst_mask. */ + FALSE), /* Pcrel_offset. */ + + /* A 32 bit reference to a symbol, normally from a data section. */ + HOWTO (MIPS_R_REFWORD, /* Type. */ + 0, /* Rightshift. */ + 2, /* Size (0 = byte, 1 = short, 2 = long). */ + 32, /* Bitsize. */ + FALSE, /* PC_relative. */ + 0, /* Bitpos. */ + complain_overflow_bitfield, /* Complain_on_overflow. */ + coff_mips_reloc, /* Special_function. */ + "REFWORD", /* Name. */ + TRUE, /* Partial_inplace. */ + 0xffffffff, /* Src_mask. */ + 0xffffffff, /* Dst_mask. */ + FALSE), /* Pcrel_offset. */ + + /* A 26 bit absolute jump address. */ + HOWTO (MIPS_R_JMPADDR, /* Type. */ + 2, /* Rightshift. */ + 2, /* Size (0 = byte, 1 = short, 2 = long). */ + 26, /* Bitsize. */ + FALSE, /* PC_relative. */ + 0, /* Bitpos. */ + complain_overflow_dont, /* Complain_on_overflow. */ + /* This needs complex overflow + detection, because the upper four + bits must match the PC. */ + coff_mips_reloc, /* Special_function. */ + "JMPADDR", /* Name. */ + TRUE, /* Partial_inplace. */ + 0x3ffffff, /* Src_mask. */ + 0x3ffffff, /* Dst_mask. */ + FALSE), /* Pcrel_offset. */ + + /* The high 16 bits of a symbol value. Handled by the function + mips_refhi_reloc. */ + HOWTO (MIPS_R_REFHI, /* Type. */ + 16, /* Rightshift. */ + 2, /* Size (0 = byte, 1 = short, 2 = long). */ + 16, /* Bitsize. */ + FALSE, /* PC_relative. */ + 0, /* Bitpos. */ + complain_overflow_bitfield, /* Complain_on_overflow. */ + coff_mips_reloc, /* Special_function. */ + "REFHI", /* Name. */ + TRUE, /* Partial_inplace. */ + 0xffff, /* Src_mask. */ + 0xffff, /* Dst_mask. */ + FALSE), /* Pcrel_offset. */ + + /* The low 16 bits of a symbol value. */ + HOWTO (MIPS_R_REFLO, /* Type. */ + 0, /* Rightshift. */ + 2, /* Size (0 = byte, 1 = short, 2 = long). */ + 16, /* Bitsize. */ + FALSE, /* PC_relative. */ + 0, /* Bitpos. */ + complain_overflow_dont, /* Complain_on_overflow. */ + coff_mips_reloc, /* Special_function. */ + "REFLO", /* Name. */ + TRUE, /* Partial_inplace. */ + 0xffff, /* Src_mask. */ + 0xffff, /* Dst_mask. */ + FALSE), /* Pcrel_offset. */ + + /* A reference to an offset from the gp register. Handled by the + function mips_gprel_reloc. */ + HOWTO (MIPS_R_GPREL, /* Type. */ + 0, /* Rightshift. */ + 2, /* Size (0 = byte, 1 = short, 2 = long). */ + 16, /* Bitsize. */ + FALSE, /* PC_relative. */ + 0, /* Bitpos. */ + complain_overflow_signed, /* Complain_on_overflow. */ + coff_mips_reloc, /* Special_function. */ + "GPREL", /* Name. */ + TRUE, /* Partial_inplace. */ + 0xffff, /* Src_mask. */ + 0xffff, /* Dst_mask. */ + FALSE), /* Pcrel_offset. */ + + /* A reference to a literal using an offset from the gp register. + Handled by the function mips_gprel_reloc. */ + HOWTO (MIPS_R_LITERAL, /* Type. */ + 0, /* Rightshift. */ + 2, /* Size (0 = byte, 1 = short, 2 = long). */ + 16, /* Bitsize. */ + FALSE, /* PC_relative. */ + 0, /* Bitpos. */ + complain_overflow_signed, /* Complain_on_overflow. */ + coff_mips_reloc, /* Special_function. */ + "LITERAL", /* Name. */ + TRUE, /* Partial_inplace. */ + 0xffff, /* Src_mask. */ + 0xffff, /* Dst_mask. */ + FALSE), /* Pcrel_offset. */ + + EMPTY_HOWTO (8), + EMPTY_HOWTO (9), + EMPTY_HOWTO (10), + EMPTY_HOWTO (11), + EMPTY_HOWTO (12), + EMPTY_HOWTO (13), + EMPTY_HOWTO (14), + EMPTY_HOWTO (15), + EMPTY_HOWTO (16), + EMPTY_HOWTO (17), + EMPTY_HOWTO (18), + EMPTY_HOWTO (19), + EMPTY_HOWTO (20), + EMPTY_HOWTO (21), + EMPTY_HOWTO (22), + EMPTY_HOWTO (23), + EMPTY_HOWTO (24), + EMPTY_HOWTO (25), + EMPTY_HOWTO (26), + EMPTY_HOWTO (27), + EMPTY_HOWTO (28), + EMPTY_HOWTO (29), + EMPTY_HOWTO (30), + EMPTY_HOWTO (31), + EMPTY_HOWTO (32), + EMPTY_HOWTO (33), + HOWTO (MIPS_R_RVA, /* Type. */ + 0, /* Rightshift. */ + 2, /* Size (0 = byte, 1 = short, 2 = long). */ + 32, /* Bitsize. */ + FALSE, /* PC_relative. */ + 0, /* Bitpos. */ + complain_overflow_bitfield, /* Complain_on_overflow. */ + coff_mips_reloc, /* Special_function. */ + "rva32", /* Name. */ + TRUE, /* Partial_inplace. */ + 0xffffffff, /* Src_mask. */ + 0xffffffff, /* Dst_mask. */ + FALSE), /* Pcrel_offset. */ + EMPTY_HOWTO (35), + EMPTY_HOWTO (36), + HOWTO (MIPS_R_PAIR, /* Type. */ + 0, /* Rightshift. */ + 2, /* Size (0 = byte, 1 = short, 2 = long). */ + 32, /* Bitsize. */ + FALSE, /* PC_relative. */ + 0, /* Bitpos. */ + complain_overflow_bitfield, /* Complain_on_overflow. */ + coff_mips_reloc, /* Special_function. */ + "PAIR", /* Name. */ + TRUE, /* Partial_inplace. */ + 0xffffffff, /* Src_mask. */ + 0xffffffff, /* Dst_mask. */ + FALSE), /* Pcrel_offset. */ +}; + +/* Turn a howto into a reloc nunmber. */ + +#define SELECT_RELOC(x, howto) { x.r_type = howto->type; } +#define BADMAG(x) MIPSBADMAG (x) + +/* Customize coffcode.h. */ +#define MIPS 1 + +#define RTYPE2HOWTO(cache_ptr, dst) \ + (cache_ptr)->howto = howto_table + (dst)->r_type; + +/* Compute the addend of a reloc. If the reloc is to a common symbol, + the object file contains the value of the common symbol. By the + time this is called, the linker may be using a different symbol + from a different object file with a different value. Therefore, we + hack wildly to locate the original symbol from this file so that we + can make the correct adjustment. This macro sets coffsym to the + symbol from the original file, and uses it to set the addend value + correctly. If this is not a common symbol, the usual addend + calculation is done, except that an additional tweak is needed for + PC relative relocs. + FIXME: This macro refers to symbols and asect; these are from the + calling function, not the macro arguments. */ + +#define CALC_ADDEND(abfd, ptr, reloc, cache_ptr) \ + { \ + coff_symbol_type *coffsym = NULL; \ + if (ptr && bfd_asymbol_bfd (ptr) != abfd) \ + coffsym = (obj_symbols (abfd) \ + + (cache_ptr->sym_ptr_ptr - symbols)); \ + else if (ptr) \ + coffsym = coff_symbol_from (abfd, ptr); \ + if (coffsym != NULL \ + && coffsym->native->u.syment.n_scnum == 0) \ + cache_ptr->addend = - coffsym->native->u.syment.n_value; \ + else if (ptr && bfd_asymbol_bfd (ptr) == abfd \ + && ptr->section != NULL) \ + cache_ptr->addend = - (ptr->section->vma + ptr->value); \ + else \ + cache_ptr->addend = 0; \ + if (ptr && howto_table[reloc.r_type].pc_relative) \ + cache_ptr->addend += asect->vma; \ + } + +/* Convert an rtype to howto for the COFF backend linker. */ + +static reloc_howto_type * +coff_mips_rtype_to_howto (bfd *abfd ATTRIBUTE_UNUSED, + asection *sec, + struct internal_reloc *rel, + struct coff_link_hash_entry *h, + struct internal_syment *sym, + bfd_vma *addendp) +{ + + reloc_howto_type *howto; + + howto = howto_table + rel->r_type; + +#ifdef COFF_WITH_PE + *addendp = 0; +#endif + + if (howto->pc_relative) + *addendp += sec->vma; + + if (sym != NULL && sym->n_scnum == 0 && sym->n_value != 0) + { + /* This is a common symbol. The section contents include the + size (sym->n_value) as an addend. The relocate_section + function will be adding in the final value of the symbol. We + need to subtract out the current size in order to get the + correct result. */ + + BFD_ASSERT (h != NULL); + +#ifndef COFF_WITH_PE + /* I think we *do* want to bypass this. If we don't, I have + seen some data parameters get the wrong relocation address. + If I link two versions with and without this section bypassed + and then do a binary comparison, the addresses which are + different can be looked up in the map. The case in which + this section has been bypassed has addresses which correspond + to values I can find in the map. */ + *addendp -= sym->n_value; +#endif + } + +#ifndef COFF_WITH_PE + /* If the output symbol is common (in which case this must be a + relocatable link), we need to add in the final size of the + common symbol. */ + if (h != NULL && h->root.type == bfd_link_hash_common) + *addendp += h->root.u.c.size; +#endif + +#ifdef COFF_WITH_PE + if (howto->pc_relative) + { + *addendp -= 4; + + /* If the symbol is defined, then the generic code is going to + add back the symbol value in order to cancel out an + adjustment it made to the addend. However, we set the addend + to 0 at the start of this function. We need to adjust here, + to avoid the adjustment the generic code will make. FIXME: + This is getting a bit hackish. */ + if (sym != NULL && sym->n_scnum != 0) + *addendp -= sym->n_value; + } + + if (rel->r_type == MIPS_R_RVA) + *addendp -= pe_data (sec->output_section->owner)->pe_opthdr.ImageBase; +#endif + + return howto; +} + +#define coff_rtype_to_howto coff_mips_rtype_to_howto +#define coff_bfd_reloc_type_lookup coff_mips_reloc_type_lookup +#define coff_bfd_reloc_name_lookup coff_mips_reloc_name_lookup + +/* Get the howto structure for a generic reloc type. */ + +static reloc_howto_type * +coff_mips_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED, + bfd_reloc_code_real_type code) +{ + int mips_type; + + switch (code) + { + case BFD_RELOC_16: + mips_type = MIPS_R_REFHALF; + break; + case BFD_RELOC_32: + case BFD_RELOC_CTOR: + mips_type = MIPS_R_REFWORD; + break; + case BFD_RELOC_MIPS_JMP: + mips_type = MIPS_R_JMPADDR; + break; + case BFD_RELOC_HI16_S: + mips_type = MIPS_R_REFHI; + break; + case BFD_RELOC_LO16: + mips_type = MIPS_R_REFLO; + break; + case BFD_RELOC_GPREL16: + mips_type = MIPS_R_GPREL; + break; + case BFD_RELOC_MIPS_LITERAL: + mips_type = MIPS_R_LITERAL; + break; + case BFD_RELOC_RVA: + mips_type = MIPS_R_RVA; + break; + default: + return NULL; + } + + return & howto_table [mips_type]; +} + +static reloc_howto_type * +coff_mips_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, + const char *r_name) +{ + unsigned int i; + + for (i = 0; + i < sizeof (howto_table) / sizeof (howto_table[0]); + i++) + if (howto_table[i].name != NULL + && strcasecmp (howto_table[i].name, r_name) == 0) + return &howto_table[i]; + + return NULL; +} + +static void +mips_swap_reloc_in (bfd * abfd, void * src, void * dst) +{ + static struct internal_reloc pair_prev; + RELOC *reloc_src = (RELOC *) src; + struct internal_reloc *reloc_dst = (struct internal_reloc *) dst; + + reloc_dst->r_vaddr = H_GET_32 (abfd, reloc_src->r_vaddr); + reloc_dst->r_symndx = H_GET_S32 (abfd, reloc_src->r_symndx); + reloc_dst->r_type = H_GET_16 (abfd, reloc_src->r_type); + reloc_dst->r_size = 0; + reloc_dst->r_extern = 0; + reloc_dst->r_offset = 0; + + switch (reloc_dst->r_type) + { + case MIPS_R_REFHI: + pair_prev = *reloc_dst; + break; + case MIPS_R_PAIR: + reloc_dst->r_offset = reloc_dst->r_symndx; + if (reloc_dst->r_offset & 0x8000) + reloc_dst->r_offset -= 0x10000; + reloc_dst->r_symndx = pair_prev.r_symndx; + break; + } +} + +static unsigned int +mips_swap_reloc_out (bfd * abfd, void * src, void * dst) +{ + static bfd_vma prev_addr = 0; + struct internal_reloc *reloc_src = (struct internal_reloc *)src; + struct external_reloc *reloc_dst = (struct external_reloc *)dst; + + switch (reloc_src->r_type) + { + case MIPS_R_REFHI: + prev_addr = reloc_src->r_vaddr; + break; + case MIPS_R_REFLO: + if (reloc_src->r_vaddr == prev_addr) + { + /* FIXME: only slightly hackish. If we see a REFLO pointing to + the same address as a REFHI, we assume this is the matching + PAIR reloc and output it accordingly. The symndx is really + the low 16 bits of the addend */ + H_PUT_32 (abfd, reloc_src->r_vaddr, reloc_dst->r_vaddr); + H_PUT_32 (abfd, reloc_src->r_symndx, reloc_dst->r_symndx); + H_PUT_16 (abfd, MIPS_R_PAIR, reloc_dst->r_type); + return RELSZ; + } + break; + } + + H_PUT_32 (abfd, reloc_src->r_vaddr, reloc_dst->r_vaddr); + H_PUT_32 (abfd, reloc_src->r_symndx, reloc_dst->r_symndx); + + H_PUT_16 (abfd, reloc_src->r_type, reloc_dst->r_type); + return RELSZ; +} + +#define coff_swap_reloc_in mips_swap_reloc_in +#define coff_swap_reloc_out mips_swap_reloc_out +#define NO_COFF_RELOCS + +static bfd_boolean +coff_pe_mips_relocate_section (bfd *output_bfd, + struct bfd_link_info *info, + bfd *input_bfd, + asection *input_section, + bfd_byte *contents, + struct internal_reloc *relocs, + struct internal_syment *syms, + asection **sections) +{ + struct internal_reloc *rel; + struct internal_reloc *rel_end; + unsigned int i; + + if (info->relocatable) + { + (*_bfd_error_handler) + (_("%B: `ld -r' not supported with PE MIPS objects\n"), input_bfd); + bfd_set_error (bfd_error_bad_value); + return FALSE; + } + + BFD_ASSERT (input_bfd->xvec->byteorder + == output_bfd->xvec->byteorder); + + rel = relocs; + rel_end = rel + input_section->reloc_count; + + for (i = 0; rel < rel_end; rel++, i++) + { + long symndx; + struct coff_link_hash_entry *h; + struct internal_syment *sym; + bfd_vma addend = 0; + bfd_vma val, tmp, targ, src, low; + reloc_howto_type *howto; + unsigned char *mem = contents + rel->r_vaddr; + + symndx = rel->r_symndx; + + if (symndx == -1) + { + h = NULL; + sym = NULL; + } + else + { + h = obj_coff_sym_hashes (input_bfd)[symndx]; + sym = syms + symndx; + } + + /* COFF treats common symbols in one of two ways. Either the + size of the symbol is included in the section contents, or it + is not. We assume that the size is not included, and force + the rtype_to_howto function to adjust the addend as needed. */ + + if (sym != NULL && sym->n_scnum != 0) + addend = - sym->n_value; + else + addend = 0; + + howto = bfd_coff_rtype_to_howto (input_bfd, input_section, rel, h, + sym, &addend); + if (howto == NULL) + return FALSE; + + /* If we are doing a relocatable link, then we can just ignore + a PC relative reloc that is pcrel_offset. It will already + have the correct value. If this is not a relocatable link, + then we should ignore the symbol value. */ + if (howto->pc_relative && howto->pcrel_offset) + { + if (info->relocatable) + continue; + if (sym != NULL && sym->n_scnum != 0) + addend += sym->n_value; + } + + val = 0; + + if (h == NULL) + { + asection *sec; + + if (symndx == -1) + { + sec = bfd_abs_section_ptr; + val = 0; + } + else + { + sec = sections[symndx]; + val = (sec->output_section->vma + + sec->output_offset + + sym->n_value); + if (! obj_pe (input_bfd)) + val -= sec->vma; + } + } + else + { + if (h->root.type == bfd_link_hash_defined + || h->root.type == bfd_link_hash_defweak) + { + asection *sec; + + sec = h->root.u.def.section; + val = (h->root.u.def.value + + sec->output_section->vma + + sec->output_offset); + } + + else if (! info->relocatable) + { + if (! ((*info->callbacks->undefined_symbol) + (info, h->root.root.string, input_bfd, input_section, + rel->r_vaddr - input_section->vma, TRUE))) + return FALSE; + } + } + + src = rel->r_vaddr + input_section->output_section->vma + + input_section->output_offset; + + /* OK, at this point the following variables are set up: + src = VMA of the memory we're fixing up + mem = pointer to memory we're fixing up + val = VMA of what we need to refer to. */ + +#define UI(x) (*_bfd_error_handler) (_("%B: unimplemented %s\n"), \ + input_bfd, x); \ + bfd_set_error (bfd_error_bad_value); + + switch (rel->r_type) + { + case MIPS_R_ABSOLUTE: + /* Ignore these. */ + break; + + case MIPS_R_REFHALF: + UI ("refhalf"); + break; + + case MIPS_R_REFWORD: + tmp = bfd_get_32 (input_bfd, mem); + /* printf ("refword: src=%08x targ=%08x+%08x\n", src, tmp, val); */ + tmp += val; + bfd_put_32 (input_bfd, tmp, mem); + break; + + case MIPS_R_JMPADDR: + tmp = bfd_get_32 (input_bfd, mem); + targ = val + (tmp & 0x03ffffff) * 4; + if ((src & 0xf0000000) != (targ & 0xf0000000)) + { + (*_bfd_error_handler) (_("%B: jump too far away\n"), input_bfd); + bfd_set_error (bfd_error_bad_value); + return FALSE; + } + tmp &= 0xfc000000; + tmp |= (targ / 4) & 0x3ffffff; + bfd_put_32 (input_bfd, tmp, mem); + break; + + case MIPS_R_REFHI: + tmp = bfd_get_32 (input_bfd, mem); + switch (rel[1].r_type) + { + case MIPS_R_PAIR: + /* MS PE object */ + targ = val + rel[1].r_offset + ((tmp & 0xffff) << 16); + break; + case MIPS_R_REFLO: + /* GNU COFF object */ + low = bfd_get_32 (input_bfd, contents + rel[1].r_vaddr); + low &= 0xffff; + if (low & 0x8000) + low -= 0x10000; + targ = val + low + ((tmp & 0xffff) << 16); + break; + default: + (*_bfd_error_handler) (_("%B: bad pair/reflo after refhi\n"), + input_bfd); + bfd_set_error (bfd_error_bad_value); + return FALSE; + } + tmp &= 0xffff0000; + tmp |= (targ >> 16) & 0xffff; + bfd_put_32 (input_bfd, tmp, mem); + break; + + case MIPS_R_REFLO: + tmp = bfd_get_32 (input_bfd, mem); + targ = val + (tmp & 0xffff); + /* printf ("refword: src=%08x targ=%08x\n", src, targ); */ + tmp &= 0xffff0000; + tmp |= targ & 0xffff; + bfd_put_32 (input_bfd, tmp, mem); + break; + + case MIPS_R_GPREL: + case MIPS_R_LITERAL: + UI ("gprel"); + break; + + case MIPS_R_SECTION: + UI ("section"); + break; + + case MIPS_R_SECREL: + UI ("secrel"); + break; + + case MIPS_R_SECRELLO: + UI ("secrello"); + break; + + case MIPS_R_SECRELHI: + UI ("secrelhi"); + break; + + case MIPS_R_RVA: + tmp = bfd_get_32 (input_bfd, mem); + /* printf ("rva: src=%08x targ=%08x+%08x\n", src, tmp, val); */ + tmp += val + - pe_data (input_section->output_section->owner)->pe_opthdr.ImageBase; + bfd_put_32 (input_bfd, tmp, mem); + break; + + case MIPS_R_PAIR: + /* ignore these */ + break; + } + } + + return TRUE; +} + +#define coff_relocate_section coff_pe_mips_relocate_section + +#ifdef TARGET_UNDERSCORE + +/* If mips gcc uses underscores for symbol names, then it does not use + a leading dot for local labels, so if TARGET_UNDERSCORE is defined + we treat all symbols starting with L as local. */ + +static bfd_boolean +coff_mips_is_local_label_name (bfd *abfd, const char *name) +{ + if (name[0] == 'L') + return TRUE; + + return _bfd_coff_is_local_label_name (abfd, name); +} + +#define coff_bfd_is_local_label_name coff_mips_is_local_label_name + +#endif /* TARGET_UNDERSCORE */ + +#define COFF_NO_HACK_SCNHDR_SIZE + +#ifndef bfd_pe_print_pdata +#define bfd_pe_print_pdata NULL +#endif + +#include "coffcode.h" + +const bfd_target +#ifdef TARGET_SYM + TARGET_SYM = +#else + mipslpe_vec = +#endif +{ +#ifdef TARGET_NAME + TARGET_NAME, +#else + "pe-mips", /* Name. */ +#endif + bfd_target_coff_flavour, + BFD_ENDIAN_LITTLE, /* Data byte order is little. */ + BFD_ENDIAN_LITTLE, /* Header byte order is little. */ + + (HAS_RELOC | EXEC_P | /* Object flags. */ + HAS_LINENO | HAS_DEBUG | + HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED), + +#ifndef COFF_WITH_PE + (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC /* Section flags. */ + | SEC_CODE | SEC_DATA), +#else + (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC /* Section flags. */ + | SEC_CODE | SEC_DATA + | SEC_LINK_ONCE | SEC_LINK_DUPLICATES), +#endif + +#ifdef TARGET_UNDERSCORE + TARGET_UNDERSCORE, /* Leading underscore. */ +#else + 0, /* leading underscore */ +#endif + '/', /* AR_pad_char. */ + 15, /* AR_max_namelen. */ + 0, /* match priority. */ + + bfd_getl64, bfd_getl_signed_64, bfd_putl64, + bfd_getl32, bfd_getl_signed_32, bfd_putl32, + bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* Data. */ + bfd_getl64, bfd_getl_signed_64, bfd_putl64, + bfd_getl32, bfd_getl_signed_32, bfd_putl32, + bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* Headers. */ + + /* Note that we allow an object file to be treated as a core file as well. */ + {_bfd_dummy_target, coff_object_p, /* bfd_check_format. */ + bfd_generic_archive_p, coff_object_p}, + {bfd_false, coff_mkobject, _bfd_generic_mkarchive, /* bfd_set_format. */ + bfd_false}, + {bfd_false, coff_write_object_contents, /* bfd_write_contents. */ + _bfd_write_archive_contents, bfd_false}, + + BFD_JUMP_TABLE_GENERIC (coff), + BFD_JUMP_TABLE_COPY (coff), + BFD_JUMP_TABLE_CORE (_bfd_nocore), + BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), + BFD_JUMP_TABLE_SYMBOLS (coff), + BFD_JUMP_TABLE_RELOCS (coff), + BFD_JUMP_TABLE_WRITE (coff), + BFD_JUMP_TABLE_LINK (coff), + BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), + + NULL, + + COFF_SWAP_TABLE +}; 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